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Statistical Analysis Methodology

Journal Article

Journal Article

Evaluation of Longitudinal Surrogate Markers

In this paper, we propose a model-free definition for the proportion of the treatment effect on the primary outcome that is explained by the treatment effect on the longitudinal surrogate markers.

Aug 4, 2020
Journal Article

Journal Article

Linking Statistics with Testing Policy to Manage COVID-19 in the Community

Monitoring the evolution of the pandemic in our society is crucial. This discussion highlights some very important principles of statistical sampling that are relevant to formulating policy.

Aug 4, 2020
Journal Article

The State of the Science in Opioid Policy Research

The rigor of study design varies notably across policy categories, highlighting the need for broader adoption of rigorous methods in opioid policy research.

Jul 7, 2020
Tool

Toolkit for Weighting and Analysis of Nonequivalent Groups: A Tutorial on the TWANG Shiny App for Two Treatments

This tutorial describes how to use a menu-driven Shiny app based on the Toolkit for Weighting and Analysis of Nonequivalent Groups (TWANG) R package. It can be used to estimate propensity score weights and treatment effects for binary treatments.

Jun 30, 2020
Q&A

Modeling the Future of COVID-19: Q&A with RAND Experts

The phrase “flatten the curve” familiarized Americans with epidemiological models used to estimate virus transmission, cases, and potential deaths from COVID-19. But new models are needed as the country enters a different stage of the crisis.

May 26, 2020
Multimedia

Epidemiological Models and COVID-19

In this Call with the Experts podcast, RAND researchers say new epidemiological models are needed as the country enters a different stage of the COVID-19 crisis, one in which changed behaviors must be taken into account.

May 21, 2020
Report

Report

Modeling the Impact of Border-Enforcement Measures

This report offers insights into effects of surveillance technology on border outcomes. The underlying research demonstrated the promise and limits of quasi-experimental statistical methods for evaluating the impact of border-enforcement measures.

May 7, 2020
Commentary

Don't Make the Pandemic Worse with Poor Data Analysis

The need for immediate answers in the face of severe public health and economic distress may create a temptation to relax statistical standards. But urgency should not preclude expert analysis and honest assessments of uncertainty. Mistaken assumptions could lead to counterproductive actions.

May 6, 2020
Multimedia

State-of-the-Art Strategies for Addressing Selection Bias When Comparing Two or More Treatment Groups

This course introduces causal modeling using the potential outcomes framework and propensity score weights to estimate causal effects from observational data.

May 1, 2020
News Release

News Release

RAND Report Examines Ways to Compare the U.S. Army's Suicide Rate with the General U.S. Population

The U.S. Army should use an expanded set of demographic factors when comparing suicide rates to those in the general population to get a more accurate comparison.

Mar 13, 2020
Report

Comparing the Army's Suicide Rate to the General Population's

The U.S. Army has typically compared its suicide rate with that of the general population while adjusting for age, gender, and yearly differences. But there are additional factors related to suicide that should be considered: race/ethnicity, educational attainment, and marital status.

Mar 10, 2020
Journal Article

Optimally Balanced Gaussian Process Propensity Scores for Estimating Treatment Effects

This paper introduces a new approach to estimating the propensity score using Gaussian processes and optimizing hyperparameters with respect to covariate balance.

Sep 19, 2019
Report

Measuring Health Care Utilization in Medicare Advantage Encounter Data: Methods, Estimates, and Considerations for Research

This report describes methodologies, estimates, and technical considerations related to measuring health care utilization in Medicare Part C encounter data.

Jul 25, 2019
Report

Tool Created to Help Multinational Companies Assess Risk of Bribery When Doing Business in Foreign Countries

Corruption can hinder global business investment — particularly in emerging markets — but multinational companies often have difficulty assessing the business bribery risk in other countries. A new tool, called the TRACE Matrix, can help.

May 13, 2019
Report

Report

Evaluating Methods to Estimate the Effect of State Laws on Firearm Deaths: A Simulation Study

As part of the RAND Corporation's Gun Policy in America initiative, the authors use simulations to assess the performance of a wide range of statistical models used to estimate the effects of state gun policies on firearm deaths.

Dec 10, 2018
Journal Article

Journal Article

Current and Future Demographics of the Veteran Population, 2014-2024

We estimate that the U.S. veteran population will shrink over the next decade - declining from 21.6 million in 2014 to 17.5 million by 2024, a 19-percent decrease.

Aug 17, 2018
Tool

A Manual for Cultural Analysis

Many academic disciplines have formally theorized culture as socially learned information that can influence beliefs and behaviors. This tool combines methods from anthropology and related areas to create a manual to examine cultural data.

Jul 9, 2018
Journal Article

Journal Article

Optimizing Variance-Bias Trade-Off in the TWANG Package for Estimation of Propensity Scores

This discussion highlights potentially meaningful ways to optimize propensity score machine learning methods to allow for minimal bias and less variability.

Dec 28, 2017
Journal Article

Journal Article

A Synthetic Estimator for the Efficacy of Clinical Trials with All-Or-Nothing Compliance

Synthetic estimation is a promising approach when patient noncompliance is affecting a clinical trial.

Sep 26, 2017
Tool

Tool

Propensity Scores for Repeated Treatments: A Tutorial for the iptw Function in the TWANG Package

This tutorial describes the use of the TWANG package in R to estimate inverse probability of treatment weights (IPTWs) when one has time varying treatments or sequences of treatments over time.

Sep 14, 2017

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RAND Topic:
Statistical Analysis Methodology

Topic Synonyms:
Statistical Modeling